1
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Pan C, Lu M, Ma L, Wu M. A Dual Emission Fluorescence Probe Based on Silicon Nanoparticles and Rhodamine B for Ratiometric Detection of Kaempferol. J Fluoresc 2024:10.1007/s10895-024-03906-3. [PMID: 39186138 DOI: 10.1007/s10895-024-03906-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Accepted: 08/07/2024] [Indexed: 08/27/2024]
Abstract
In this paper, blue fluorescent silicon nanoparticles (SiNPs) with outstanding optical properties and robust stability were synthesized by a simple one-step hydrothermal method. By introducing red emissive rhodamine B (RhB) into SiNPs solution, a dual emission nanoprobe (SiNPs@RhB) was constructed, which showed excellent pH stability, salt resistance and photobleaching resistance. The SiNPs@RhB probe could emit two peaks at 444 nm and 583 nm under 365 nm excitation. It was found that the fluorescence intensity of the two emission peaks decreased in different degrees with the addition of different concentrations of kaempferol (Kae). According to this phenomenon, a novel ratiometric fluorescence method was established for the detection of Kae via utilizing SiNPs@RhB as nanoprobe. The detection range and limit of detection (LOD) were 0.5 ~ 150 µM and 0.24 µM, respectively. The ratiometric fluorescence method exhibited the superiority of rapid detection, excellent stability, wide linear range and high sensitivity. The detection mechanism was studied by ultraviolet visible absorption spectra, fluorescence spectra and fluorescence lifetime. Furthermore, the method was applied to the detection of Kae in real samples (kaempferia powder, sea buckthorn granules and sea buckthorn dry emulsion).
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Affiliation(s)
- Congjie Pan
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China.
- Henan Engineering Research Center of Modern Chinese Medicine Research, Development and Application, Zhengzhou, 450046, China.
| | - Meicheng Lu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Longfei Ma
- Henan Police College, Zhengzhou, 450046, China
| | - Mingxia Wu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China.
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Bari S, Maity D, Mridha D, Roychowdhury T, Ghosh P, Roy P. Development of a bisphenol A based chemosensor for Al 3+ and its application in cell imaging and plant root imaging. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:5642-5651. [PMID: 39113546 DOI: 10.1039/d4ay01058b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Bisphenol A is a fluorophoric platform that is used to develop chemosensors for various species. Herein, we report a bisphenol A based Schiff-base molecule, 4,4'-(propane-2,2-diyl)bis(2-((E)-((2-hydroxy-5-methylphenyl)imino)methyl)phenol) (Me-H4L), as a selective chemosensor for Al3+. Among the several metal ions, it shows a significant increment in its fluorescence intensity (50 fold) at 535 nm in the presence of Al3+ ions. The enhanced fluorescence was attributed to the CHEFF mechanism and inhibition of CN isomerization. The limit of detection value of Me-H4L for Al3+ was determined to be 9.65 μM. Its quantum yield and lifetime increased considerably in the presence of the cation. Some theoretical calculations were performed to explain the interaction between Al3+ and the probe. Furthermore, Me-H4L was applied in cell imaging studies using animal cells and plant roots.
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Affiliation(s)
- Sibshankar Bari
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India.
| | - Dinesh Maity
- Department of Chemistry, Government General Degree College, Mangalkote, Purba Bardhaman-713132, India
| | - Deepanjan Mridha
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Tarit Roychowdhury
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Pritam Ghosh
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, Berlin 12489, Germany
| | - Partha Roy
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India.
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3
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Xie Y, Cui S, Hu J, Yu H, Xuan A, Wei Y, Lian Y, Wu J, Du W, Zhang E. Design and preparation of Ti-xFe antibacterial titanium alloys based on micro-area potential difference. Biometals 2024; 37:337-355. [PMID: 37904075 DOI: 10.1007/s10534-023-00551-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/05/2023] [Indexed: 11/01/2023]
Abstract
Fe was selected as an alloying element for the first time to prepare a new antibacterial titanium alloy based on micro-area potential difference (MAPD) antibacterial mechanism. The microstructure, the corrosion resistance, the mechanical properties, the antibacterial properties and the cell biocompatibility have been investigated in detail by optical microscopy, scanning electron microscopy, electrochemical testing, mechanical property test, plate count method and cell toxicity measurement. It was demonstrated that heat treatment had a significant on the compressive mechanical properties and the antibacterial properties. Ti-xFe (x = 3,5 and 9) alloys after 850 °C/3 h + 550 °C/62 h heat treatment exhibited strong antimicrobial properties with an antibacterial rate of more than 90% due to the MAPD caused by the redistribution of Fe element during the aging process. In addition, the Fe content and the heat treatment process had a significant influence on the mechanical properties of Ti-xFe alloy but had nearly no effect on the corrosion resistance. All Ti-xFe alloys showed non-toxicity to the MC3T3 cell line in comparison with cp-Ti, indicating that the microzone potential difference had no adverse effect on the corrosion resistance, cell proliferation, adhesion, and spreading. Strong antibacterial properties, good cell compatibility and good corrosion resistance demonstrated that Ti-xFe alloy might be a candidate titanium alloy for medical applications.
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Affiliation(s)
- Yanchun Xie
- Northern Theater General Hospital, Shenyang, 110016, China
| | - Shenshen Cui
- Key Laboratory for Anisotropy and Texture of Materials, School of Materials Science and Engineering, Education Ministry of China, Northeastern University, Shenyang, 110819, China
| | - Jiali Hu
- Key Laboratory for Anisotropy and Texture of Materials, School of Materials Science and Engineering, Education Ministry of China, Northeastern University, Shenyang, 110819, China
| | - Hailong Yu
- Northern Theater General Hospital, Shenyang, 110016, China.
| | - Anwu Xuan
- Northern Theater General Hospital, Shenyang, 110016, China
| | - Yongcun Wei
- Graduate School of Dalian Medical University, Dalian, 116051, China
| | - Yi Lian
- Northern Theater General Hospital, Shenyang, 110016, China
| | - Jinhua Wu
- Zhejiang Wanfeng Precision Casting Co., Ltd, Shaoxing, 312000, China
| | - Weinan Du
- Zhejiang Wanfeng Precision Casting Co., Ltd, Shaoxing, 312000, China
| | - Erlin Zhang
- Key Laboratory for Anisotropy and Texture of Materials, School of Materials Science and Engineering, Education Ministry of China, Northeastern University, Shenyang, 110819, China.
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Tan K, Ma H, Mu X, Wang Z, Wang Q, Wang H, Zhang XD. Application of gold nanoclusters in fluorescence sensing and biological detection. Anal Bioanal Chem 2024:10.1007/s00216-024-05220-0. [PMID: 38436693 DOI: 10.1007/s00216-024-05220-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/29/2024] [Accepted: 02/16/2024] [Indexed: 03/05/2024]
Abstract
Gold nanoclusters (Au NCs) exhibit broad fluorescent spectra from visible to near-infrared regions and good enzyme-mimicking catalytic activities. Combined with excellent stability and exceptional biocompatibility, the Au NCs have been widely exploited in biomedicine such as biocatalysis and bioimaging. Especially, the long fluorescence lifetime and large Stokes shift attribute Au NCs to good probes for fluorescence sensing and biological detection. In this review, we systematically summarized the molecular structure and fluorescence properties of Au NCs and highlighted the advances in fluorescence sensing and biological detection. The Au NCs display high sensitivity and specificity in detecting iodine ions, metal ions, and reactive oxygen species, as well as certain diseases based on the fluorescence activities of Au NCs. We also proposed several points to improve the practicability and accelerate the clinical translation of the Au NCs.
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Affiliation(s)
- Kexin Tan
- Tianjin Key Laboratory of Brain Science and Neural Engineering, Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, 300072, China
| | - Huizhen Ma
- Tianjin Key Laboratory of Brain Science and Neural Engineering, Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, 300072, China
- Department of Physics and Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Sciences, Tianjin University, Tianjin, 300350, China
| | - Xiaoyu Mu
- Tianjin Key Laboratory of Brain Science and Neural Engineering, Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, 300072, China
| | - Zhidong Wang
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Qi Wang
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China.
| | - Hao Wang
- Tianjin Key Laboratory of Brain Science and Neural Engineering, Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, 300072, China.
| | - Xiao-Dong Zhang
- Tianjin Key Laboratory of Brain Science and Neural Engineering, Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, 300072, China.
- Department of Physics and Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Sciences, Tianjin University, Tianjin, 300350, China.
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Meng Z, Li X, Liang Y, Gu Y, Xu X, Wang Z, Yang Y, Wang S. An efficient chitosan-naphthalimide fluorescent probe for simultaneous detection and adsorption of Hg 2+ and its application in seafood, water and soil environments. Int J Biol Macromol 2023; 247:125807. [PMID: 37453631 DOI: 10.1016/j.ijbiomac.2023.125807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/29/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023]
Abstract
As a virulent heavy metal ion, Hg2+ will lead to a serious threat to ecosystem and human health. In this work, we reported a chitosan-naphthalimide fluorescent probe CS-NA-ITC for specific recognition and efficient adsorption of Hg2+. CS-NA-ITC showed no fluorescence in solution state, while the fluorescence intensity increased obviously at the presence of Hg2+, accompanied by the fluorescence color becomes from colorless to bright yellow. It displayed favorable properties like low detection limit (73 nM), extensive pH detection range (5-10) and excellent anti-interference ability. The binding pattern of CS-NA-ITC to Hg2+ was verified by Job's plot, XPS analysis and FT-IR test. In addition, CS-NA-ITC was utilized to recognition of Hg2+ in actual water and soil samples and seafood products. Furthermore, the CS-NA-ITC hydrogel could be employed as an efficient Hg2+ adsorbent with good reusability, which adsorption ability was enhanced compared to chitosan hydrogel.
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Affiliation(s)
- Zhiyuan Meng
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing, 210037, China
| | - Xinyan Li
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing, 210037, China
| | - Yueyin Liang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing, 210037, China
| | - Yuexin Gu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing, 210037, China
| | - Xu Xu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing, 210037, China
| | - Zhonglong Wang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing, 210037, China.
| | - Yiqin Yang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing, 210037, China.
| | - Shifa Wang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing, 210037, China.
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Che H, Tian X, Wang J, Dai C, Nie Y, Li Y, Lu L. A portable and intelligent logic detector for simultaneous and in-situ detection of Al 3+ and fluoride in groundwater. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131956. [PMID: 37392640 DOI: 10.1016/j.jhazmat.2023.131956] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/24/2023] [Accepted: 06/26/2023] [Indexed: 07/03/2023]
Abstract
To develop a convenient and intelligent detector for simultaneous and in-situ detection of Al3+ and F- in groundwater, a novel organic probe called RBP has been prepared. With the increase of Al3+, RBP showed a significant fluorescence enhancement at 588 nm, and the detection limit was 0.130 mg/L. After combining with fluorescent internal standard CDs, the fluorescence of RBP-Al-CDs at 588 nm was quenched due to the replace of F- for Al3+, while the CDs at 460 nm remained unchanged, and the detection limit was 0.0186 mg/L. For convenient and intelligent detection, an RBP-based logic detector has been developed for simultaneous detection of Al3+ and F-. Within the ultra-trace, low concentration, and high concentration range of Al3+ and F-, the logic detector can achieve rapid feedback on their concentration levels ("U", "L" and "H") through different output modes of the signal lamps. The development of logical detector is of great significance for studying the in-situ chemical behavior of Al3+ and F- and for daily household detection.
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Affiliation(s)
- Huachao Che
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xike Tian
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Jiahuan Wang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Chu Dai
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Yulun Nie
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China.
| | - Yong Li
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Liqiang Lu
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
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Xiang H, He S, Zhao G, Zhang M, Lin J, Yang L, Liu H. Gold Nanocluster-Based Ratiometric Probe with Surface Structure Regulation-Triggered Sensing of Hydrogen Sulfide in Living Organisms. ACS APPLIED MATERIALS & INTERFACES 2023; 15:12643-12652. [PMID: 36856682 DOI: 10.1021/acsami.2c19057] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The development of reliable probes for in vivo detection of hydrogen sulfide (H2S) with high sensitivity and selectivity is of great significance due to its key roles in many pathological and physiological processes. Herein, it was found that H2S could finely regulate surface structure of gold nanoclusters (AuNCs) through reduction of surface Au(I)-ligand motifs and further quench their fluorescence by a two-stage kinetic reaction process. Stage I showed the H2S-assisted surface Au(I)-ligand reduction and Au(0) core growth with a rapid fluorescence decrease; stage II showed the surface structure optimization and reconstruction with a relatively slow fluorescence quenching. By virtue of the excellent fluorescence response of AuNCs to H2S, a novel ratiometric fluorescence probe (RBDA) for sensing H2S was designed through electrostatic attraction-induced fluorescence resonance energy transfer (FRET) between AuNCs and rhodamine B. The probe was facilely prepared, showing a straightforward, rapid ratiometric fluorescence response to H2S with built-in self-calibration. It presented the high detection sensitivity with a detection limit (LOD) of 56 nM and an excellent sensing selectivity for H2S over various other biological species. The probe was demonstrated to possess high biostability, low cytotoxicity, good cell and issue penetrability, and favorable biocompatibility. It realizes successful monitoring of both exogenous and endogenous H2S levels in living cells and zebrafish.
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Affiliation(s)
- Hui Xiang
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P.R. China
| | - Shiyu He
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P.R. China
| | - Gan Zhao
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P.R. China
| | - Mengting Zhang
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P.R. China
| | - Jian Lin
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P.R. China
| | - Lina Yang
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P.R. China
| | - Honglin Liu
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P.R. China
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8
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Liu L, Li JM, Wang HJ, Zhang MD, Xi Y, Xu J, Huang YY, Zhang B, Li Y, Zhang ZB, Zhao ZF, Cui CX. Study on Fluorescence Recognition of Fe 3+, Cr 2O 72- and p-Nitrophenol by a Cadmium Complex and Related Mechanism. Molecules 2023; 28:1848. [PMID: 36838838 PMCID: PMC9965397 DOI: 10.3390/molecules28041848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
The effective detection of environmental pollutants is very important to the sustainable development of human health and the environment. A luminescent Cd(II) coordination complex, {[Cd(dbtdb)(1,2,4-H3btc)]·0.5H2O}n (1) (dbtdb = 1-(2,3,5,6-tetramethyl-4-((2-(thiazol-4-yl)-2H-benzo[d]imidazol-3(3aH)-yl)methyl)benzyl)-2,7a-dihydro-2-(thiazol-4-yl)-1H-benzo[d]imidazole, 1,2,4-H3btc = 1,2,4-benzenetricarboxylic acid), was obtained by hydrothermal reactions. Complex 1 has a chain structure decorated with uncoordinated Lewis basic O and S donors and provides good sensing of Fe3+, Cr2O72-, and p-nitrophenol with fluorescence quenching through an energy transfer process. The calculated binding constants were 3.3 × 103 mol-1 for Fe3+, 2.36 × 104 mol-1 for Cr2O72-, and 9.3 × 103 mol-1 for p-nitrophenol, respectively. These results show that 1 is a rare multiresponsive sensory material for efficient detection of Fe3+, Cr2O72-, and p-nitrophenol.
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Affiliation(s)
- Lu Liu
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Jian-Min Li
- School of Resources and Environment, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Hui-Jie Wang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Meng-Di Zhang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Yu Xi
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Jie Xu
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Yuan-Yuan Huang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Bo Zhang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Ying Li
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Zhen-Bei Zhang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Zi-Fang Zhao
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Cheng-Xing Cui
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
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Arputharaj E, Singh S, Pasupuleti RR, Dahms HU, Huang YL. Visible fluorescent sensing of Cu2+ ions in urine by reusable chitosan/l-histidine–stabilized silicon nanoparticles integrated thin layer chromatography sheet. Anal Chim Acta 2022; 1231:340418. [DOI: 10.1016/j.aca.2022.340418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/12/2022] [Accepted: 09/16/2022] [Indexed: 11/30/2022]
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Mandal J, Pal K, Ghosh Chowdhury S, Karmakar P, Panja A, Banerjee S, Saha A. Two rhodamine-azo based fluorescent probes for recognition of trivalent metal ions: crystal structure elucidation and biological applications. Dalton Trans 2022; 51:15555-15570. [PMID: 36168977 DOI: 10.1039/d2dt00399f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two rhodamine and azo based chemosensors (HL1 = (3',6'-bis(ethylamino)-2-((2-hydroxy-3-methoxy-5-(phenyldiazenyl)benzylidene)amino)-2',7'-dimethylspiro[isoindoline-1,9'-xanthen]-3-one) and HL2 = (3',6'-bis(ethylamino)-2-(((2-hydroxy-3-methoxy-5-(p-tolyldiazenyl)benzylidene)amino)-2',7'-dimethylspiro[isoindoline-1,9'-xanthen]-3-one) have been synthesized for colorimetric and fluorometric detection of three trivalent metal ions, Al3+, Cr3+ and Fe3+. The chemosensors have been thoroughly characterized by different spectroscopic techniques and X-ray crystallography. They are non-fluorescent due to the presence of a spirolactam ring. The trivalent metal ions initiate an opening of the spirolactam ring when excited at 490 nm in Britton-Robinson buffer solution (H2O/MeOH 1 : 9 v/v; pH 7.4). The opening of the spirolactam ring increases conjugation within the probe, which is supported by an intense fluorescent pinkish-yellow colouration and an enhancement of the fluorescence intensity of the chemosensors by ∼400 times in the presence of Al3+ and Cr3+ ions and by ∼100 times in the presence of Fe3+ ions. Such a type of enormous fluorescence enhancement is rarely observed in other chemosensors for the detection of trivalent metal ions. A 2 : 1 binding stoichiometry of the probes with the respective ions has been confirmed by Job's plot analysis. Elucidation of the crystal structures of the Al3+ bound chemosensors (1 and 4) also justifies the 2 : 1 binding stoichiometry and the presence of an open spirolactam ring within the chemosensor framework. The limit of detection (LOD) values for both the chemosensors towards the respective metal ions are in the order of ∼10-9 M which supports their application in the biological field. The biocompatibility of the ligands has been studied with the help of the MTT assay. The results show that no significant toxicity was observed up to 100 μM of chemosensor concentration. The capability of our synthesized chemosensors to detect intracellular Al3+, Cr3+ and Fe3+ ions in the cervical cancer cell line HeLa was evaluated with the aid of fluorescence imaging.
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Affiliation(s)
- Jayanta Mandal
- Department of Chemistry, Jadavpur University, Kolkata-700032, India.
| | - Kunal Pal
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata-700032, India
| | | | - Parimal Karmakar
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata-700032, India
| | - Anangamohan Panja
- Department of Chemistry, Gokhale Memorial Girls' College, 1/1 Harish Mukherjee Road, Kolkata-700020, India
| | - Snehasis Banerjee
- Department of Higher Education, University Branch, Bikash Bhavan, Salt Lake, Sector-3, Kolkata, 700091, India
| | - Amrita Saha
- Department of Chemistry, Jadavpur University, Kolkata-700032, India.
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Zhu H, Ma P, Qian Y, Xia J, Gong F, Chen L, Xu L. Spectral Properties Echoing the Tautomerism of Milrinone and Its Application to Fe 3+ Ion Sensing and Protein Staining. BIOSENSORS 2022; 12:777. [PMID: 36290915 PMCID: PMC9599543 DOI: 10.3390/bios12100777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/16/2022] [Accepted: 09/18/2022] [Indexed: 06/16/2023]
Abstract
Knowledge on the spectral properties of the tautomers of milrinone (MLR) in solvents and solid-state, as well as under light conditions is of critical importance from both theoretical and practical points of view. Herein, we investigated the spectral properties of MLR in different conditions using UV-Vis and fluorescence spectroscopies. The experimental results demonstrated that MLR can undergo the tautomerization reaction induced by solvent polarity, light and pH, eliciting four tautomeric structures (enol, keto, anion, and cation forms). The interesting multi-functional groups in MLR enable it to coordinate with metal ions or to recognize gust molecules by H-bonding. In the use of MLR as an excited-state intermolecular proton transfer (inter-ESPT) fluorescent probe, a highly sensitive and selective analysis of Fe3+ was developed, which offered a sensitive detection of Fe3+ with the detection limit of 3.5 nM. More importantly, MLR exhibited the ability of anchoring proteins and led to the recognition-driven turn-on inter-ESPT process, highlighting the potential for the probe to image proteins in electrophoresis gels. The spectral experimental results revealed the possible degradation mechanism, so that we can better understand the side effects of oral preparations. The use of the available drug as an inter-ESPT fluorescent probe is simple and accurate, providing a good method for Fe3+ ion sensing and protein staining.
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Effects of Xanthene Fluorophore on Light Physical Properties and their Dyeing Performance on Modacrylic Fabrics. J Fluoresc 2022; 32:2199-2212. [DOI: 10.1007/s10895-022-03019-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 08/19/2022] [Indexed: 10/15/2022]
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Design of 3D-Printed Electronic Fiber Optic Sensor to Detect Rhodamine B Reagent: An Initiation to Potential Virus Detection. Biomimetics (Basel) 2022; 7:biomimetics7030094. [PMID: 35892364 PMCID: PMC9326570 DOI: 10.3390/biomimetics7030094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 01/27/2023] Open
Abstract
A fluorescence device based on ultraviolet light is proposed in this paper, which currently stands at the design stage with the eventual aim to potentially detect virus/antibody fluorescence reactions. The designed device is proposed to have the characteristics of high reflectivity, low power consumption, wide spectrum of light source, and proper silver coating. For fabrication and raising product quality, 3D printing technology and a sputtering test will be used. In this connection, this paper firstly introduces the design sources; then, the ideas of inventing fluorescence detection devices based on ultraviolet light, followed by the data analysis as well as discussing the results of computer simulations. The design process, materials, methods, and experiments are demonstrated following the reality work procedure. Instead of directly using a virus or antibodies for the experiment, at the current design stage, we focus on using this device to detect the rhodamine B reagent. Experiment shows that this reagent can be successfully detected. With this achievement, we logically believe that such type of an ultraviolet optical sensor, with further development and testing, may have the possible value to detect a single virus such as COVID-19, as well as other viruses or small molecules. Though there is long way to go to achieve such a goal, future works experimenting with the detection device on real virus or antibodies can take place more efficiently with a good foundation.
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Bai Z, Li P, Fu H, Chen P, Feng X, Hu X, Song X, Chen L. Fluorescence and electrochemical integrated dual-signal sensor for the detection of iron ions in water based on an ITO substrate. Analyst 2022; 147:4489-4499. [DOI: 10.1039/d2an01243j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorescent and electrochemical dual-signal sensor has been fabricated for the visual and sensitive detection of Fe3+ in water.
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Affiliation(s)
- Zhenyu Bai
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, P.R. China
| | - Ping Li
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, P.R. China
| | - Hao Fu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, P.R. China
| | - Peicai Chen
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, P.R. China
| | - Xiaoyang Feng
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, P.R. China
| | - Xueping Hu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, P.R. China
| | - Xingliang Song
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, P.R. China
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
- School of Pharmacy, Binzhou Medical University, Yantai, 264003, China
- School of Environmental & Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China
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